SN28846

SERIAL DRIVER

SOCS024B – FEBRUARY 1991

4

POST OFFICE BOX 655303

recommended operating conditions

MIN

NOM

MAX

UNIT

Positive supply voltage, VCC

0

1.5

3

V

Negative supply voltage, VSS (see Note 2)

–11.1

–10.4

–9.7

V

SRG1IN, SRG2IN, SRG3IN, TRGIN

2

5

High-level input voltage, VIH

SEL0, SEL1

VCC

V

PD

4

5

SRG1IN, SRG2IN, SRG3IN, TRGIN

0

0.8

Low-level input voltage, VIL

SEL0, SEL1

VSS

V

PD

0

0.4

Capacitance load

SRG1OUT, SRG2OUT, SRG3OUT

200

pF

Capacitance load

TRGOUT

350

pF

Operating free-air temperature, TA

–20

45

°C

NOTE 2: The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for voltage

levels only.

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

VOH

High-level output voltage

SRG1OUT, SRG2OUT,

SRG3OUT

f = 4.8 MHz,

See Figure 2

tw = 70 ns,

VCC –05

VCC+0 5

V

VOH

High-level out ut voltage

TRGOUT

f = 3.6 MHz,

See Figure 2

tw = 140 ns,

VCC – 0.5

VCC+0.5

V

VOL

Low-level output voltage

SRG1OUT, SRG2OUT,

SRG3OUT

f = 4.8 MHz,

See Figure 2

tw = 70 ns,

VSS –0 8

VSS+0 8

V

VOL

Low-level out ut voltage

TRGOUT

f = 3.6 MHz,

See Figure 2

tw = 140 ns,

VSS – 0.8

VSS+0.8

V

VN(PP)

Peak-to-peak output

noise voltage

SRG1OUT, SRG2OUT,

SRG3OUT

See Figure 2

300

mV

IIH

High-level input current

SRG1IN, SRG2IN,

SRG3IN, TRGIN,

SEL0, SEL1

VI = 5.5 V

50

µA

IIL

Low-level input current

VI = 0

± 10

µA

ISS

Supply current

No load, PD at 0 V, TA = 25°C

– 0.5

mA

ISS

Supply current

See Note 3

–25

mA

fmax

Maximum frequency

of oscillation

SRG1OUT, SRG2OUT,

SRG3OUT

CL = 200 pF

10

MHz

max

of oscillation

TRGOUT

CL = 350 pF

1

NOTE 3: SRG1OUT, SRG2OUT, and SRG3OUT are loaded with 80-pF capacitive loads; TRGOUT is loaded with a 180-pF load. The SN28846

driver is clocked by the SN28835 timer. SEL0 and SEL1 are both held at –11.1 V.